annoying ex

Hey ladies I need some advice. I was seeing a guy for about 9 months about 2 years ago. I'm with some one new now but we still talk and my current BF is fine with it. He knows I get worried that if I piss him off he will leak my nudes (yes I was stupid for sending them, I know) but we were really serious. He has never threatened this and when we have had rows before (baaaaad ones) he's never done it but recently he has been behaving off with me he has now blokes me On FB and I just called him and argued. I changed all my privacy a couple weeks ago so no one can tag me / write on my wall etc . Do you think I'm overthinking it ? We had arguments before where we literally wished death on eachother (disgusting I know but that is how unhealthy the relationship was)...... They were sent years ago but still show on shared photos on FB which he obv can't see now but may have copies. Can you guys help put my mind at rest ? :( I'm struggling to sleep now